Metal Saga! The (possibly, if you take one option) shortest game in RPG history, I bought the game simply because I had read about that particular ending. My son and I laughed our asses off when we both finished the game in less than 5 minutes!

From the newly announced Metal Max 4, a long running series of RPGs doing open world games before they were cool, featuring battles in tanks or with dogs with rocket launchers strapped to their backs against stuff like dinosaur battleships, giant fucking dudes with cannons grafted to their chests, mutant sunflowers, and so on.

The reason why you haven't heard of it is because Metal Saga was the only game from the series to make it outside of Japan and it bombed spectacularly because it landed during the heyday of the PS2's RPG rush (turning into yet another Atlus JRPG) and it moved away from some (but not all) of the kookiness that pervaded the Metal Max series.